Thanks for sharing your knowledge. I had no idea about any of it other than the Hindu influences.
Syrian Christians, most of whom we now call “Lebanese,” also arrived in India very early. Then as now, they were amazingly enterprising traders and colonizers. There were some very old Jewish communities in South India as well.
I’m always happy to share from my overflowing stocks of historical and cultural trivia. It’s a shame there’s no paying profession of “knows all kinds of largely useless facts”!